Today's update to our iOS, Android and Desktop apps brings you faster and better GIFs along with a new type of bots. The Windows Phone and OSX native clients will be getting this update soon as well.

GIF Revolution

Animations will now become up to 20x faster when sending and downloading. GIFs will play automatically in your chats (this can be turned off in Settings). We've also added a dedicated GIF tab to the sticker panel. Tap on a GIF (long tap on iOS) to save it to the panel – then send it to friends in just a few taps.
https://telegram.org/blog/gif-revolution